poetry: install pybricks package from pypi

This lets us dogfood our own package and keeps poetry from cloning the
git repo every time we update other packages.

Author: dlech

poetry.lock

@@ -15,7 +15,7 @@ flake8 = "^3.8.3"
 GitPython = "^3.1.11"
 gql = "^3.0.0a5"
 plotly = "^4.14.1"
-pybricks = { git = "https://github.com/pybricks/pybricks-api.git", branch = "master" }
+pybricks = {version = "^3.0.0a5", allow-prereleases = true}
 pybricksdev = {version = "1.0.0a4", allow-prereleases = true}
 pycryptodomex = "^3.9.9"
 PyGithub = "^1.51"